Title:
STRETCHED MULTILAYER SYNTHETIC RESIN FILM
Document Type and Number:
WIPO Patent Application WO/2019/026512
Kind Code:
A1
Abstract:
The present invention relates to a stretched multilayer synthetic resin film which is suitable for use as a retardation film and the like. A stretched multilayer synthetic resin film according to the present invention comprises layers (A) that contain a resin (A) and a layer (B) that contains a resin (B); and the layers (A) are laminated on both surfaces of the layer (B). This stretched multilayer synthetic resin film is characterized in that: the resin (A) is a vinyl copolymer resin which contains a (meth)acrylic acid ester constituent unit (a) and an aliphatic vinyl constituent unit (b) having a cyclohexyl skeleton at a predetermined quantitative ratio; and the resin (B) is a vinyl copolymer resin which contains a styrene constituent unit (c) at a predetermined quantitative ratio. This film is also characterized by having an in-plane retardation Re within the range of from 0.0 nm to 30.0 nm and a retardation in the thickness direction Rth within the range of from -300 nm to -30 nm.
Inventors:
NYUUI TATSUKI (JP)
KOIKE NOBUYUKI (JP)
TAGUWA KEN (JP)
OCHI NORIAKI (JP)
TSURUYA HIROTAKA (JP)
KOIKE NOBUYUKI (JP)
TAGUWA KEN (JP)
OCHI NORIAKI (JP)
TSURUYA HIROTAKA (JP)
Application Number:
PCT/JP2018/025270
Publication Date:
February 07, 2019
Filing Date:
July 03, 2018
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
G02B5/30; B32B27/30; C08F20/18
Foreign References:
| JP2012228811A | 2012-11-22 | |||
| JP2008073890A | 2008-04-03 | |||
| JP2009178899A | 2009-08-13 | |||
| JP2012173487A | 2012-09-10 |
Attorney, Agent or Firm:
KOBAYASHI Hiroshi et al. (JP)
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